Register

S=n(a1+an)/2 gives the partial sum of an arithmetic sequence. What is the formula solved for an?

S=n(a1+an)/2 gives the partial sum of an arithmetic sequence. What is the formula solved for an?
128k views
5 votes
S=n(a1+an)/2 gives the partial sum of an arithmetic sequence. What is the formula solved for an?

User Kinaan Khan Sherwani
by
7.5k points

2 Answers

0 votes

Just took the quiz.

The answer is an=2S-a1n/n

User The Integrator
by
8.8k points
4 votes
S = n(a1 + an)/2
2S = n(a1 + an)
2S = na1 + nan
nan = 2S - na1
an = (2S - n a1)/n
User Enigo
by
7.8k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Link Copied!